{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["concept or principle", "machanical property", "manufacturing process", "biomedical", "process parameter", "material"], "input": "The heat transfer performance is dependent on the surface area to volume ratio ."}
{"concept or principle": ["heat transfer", "volume"], "machanical property": [], "manufacturing process": [], "biomedical": [], "process parameter": ["surface area"], "material": []}